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This advisory discloses a CRITICAL security vulnerability that we have found in versions of FishEye and Crucible from 2.0 up to and including 2.7.8. You need to upgrade your existing FishEye and Crucible installations to fix these vulnerabilities. Enterprise Hosted customers should request an upgrade by raising a support request at http://support.atlassian.com in the "Enterprise Hosting Support" project. Neither FishEye nor Crucible in Studio and Atlassian OnDemand are vulnerable to any of the issues described in this advisory.

Atlassian is committed to improving product security. The vulnerabilities listed in this advisory have been discovered by Atlassian, unless noted otherwise. The reporter may also have requested that we do not credit them.

If you have questions or concerns regarding this advisory, please raise a support request at http://support.atlassian.com/.

In this advisory:

Code Injection Vulnerability

Severity

Atlassian rates the severity level of this vulnerability as CRITICAL, according to the scale published in Severity Levels for Security Issues. The scale allows us to rank the severity as critical, high, medium or low.

Description

We have identified and fixed a code injection vulnerability in FishEye and Crucible caused by an underlying vulnerability in the third-party Webwork 2 framework. This vulnerability allows an attacker to run arbitrary Java code on a FishEye/Crucible server with user privileges of the FishEye/Crucible process. This vulnerability is a variant of a recently disclosed Struts2 vulnerability. The vulnerability exists in FishEye and Crucible pages accessible only by users with administrative privileges. It can be exploited with use of social engineering, e.g. by having the administrator click on a specially crafted link.

The maintainer of the original library can be contacted at http://struts.apache.org/

Vulnerability

The table below describes the FishEye and Crucible versions and the specific functionality affected by the command injection vulnerability.

FishEye and Crucible Component

Affected FishEye and Crucible Versions

Fixed Version

Issue Tracking

WebWork 2

2.0 - 2.7.8

2.6.7

2.7.9

FE-3891

Risk Mitigation

We recommend that you upgrade your FishEye and Crucible installations to fix this vulnerability.

Alternatively, if you are not in a position to upgrade immediately and you judge it necessary, you can restrict access to your instance of FishEye/Crucible by using a firewall.

Fix

FishEye and Crucible 2.6.7, 2.7.9  and later versions fix this issue. View the issue linked above for information on fix versions. For a full description of the latest version of FishEye and Crucible, see the FishEye and Crucible release notes. You can download the latest versions from the FishEye and Crucible download centres. There are no patches available for these issues.

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